D640N - Belimo 2-way Butterfly valve, DN 40

All Valves made by Belimo that are in stock with iacs are shipped for free or within 1-2 days.

The Belimo D640N is a Valve used as a control or shutdown Valve in heating, ventilation, and air conditioning systems.

It is a Butterfly Valve with a Diameter Nominal of DN 40.

IACS can help you get the best-priced Belimo Butterfly Valve for your system.

If you have any queries concerning size or installation, please refer to the Belimo custom datasheet above or contact iacs by email.

Features

• Mode of operation The butterfly valve is opened or closed completely by an open-close rotary actuator. Continuous rotary actuators are controlled by a commercially available controller and move the valve discs into any position desired. The disc made of stainless steel is pressed into the soft-sealing EPDM seat by a rotary movement and ensures leakage rate A (tight). The flow rate losses are slight in open position and the kvs value is high.
  
  
• Manual override Manual throttling or shut-off can be carried out with a lever or a worm gear (see «Accessories»). – With lever (DN 25 ... 150): Adjustable in 10 ratchet steps with position indication (0 = 0° ; 9 = 90° ). – With worm gear (DN 25 ... 700): Steplessly adjustable (self-locking) with position indication.

•    Media Cold and warm water, water with max 50% volume of glycol
•    Media temperature –20°C ... +120°C
•    Rated pressure ps 1600 kPa
•    Flow rate kvs See «Overview of types»
•    Leakage rate A, tight (EN 12266-1)
•    Pipe connectors DN 25 ... DN 200 DN 250 ... DN 350 DN 400 ... DN 700 Flange PN 6 / PN 10 / PN 16 (according to ISO 7005-2) Flange PN 10 2) / PN 16 (according to ISO 7005-2) Flange PN 16 (according to ISO 7005-2)
•    Suitable connecting flanges According to ISO 7005-2 and EN 1092-2
•    Angle of rotation 90°
•    Installation position Vertical to horizontal (in relation to the stem)
•    Maintenance Maintenance-free
•    Materials Fitting EN-JS1030 (GGG 40), Epoxy powder-coating (RAL 5002)
•    Disc DIN/EN 1.4301 / AISI SS 304 (Stainless steel)
•    Stem DIN/EN 1.4005 / AISI SS 416 (Stainless steel)
•   Seat EPDM
•    Stem seal EPDM O-ring
•    Stem bearing RPTFE